could anyone help me out in letting me know if this watch is 100% genuine because some things look a bit off about it

 

Genuine Omega, fake Seamaster.

Dial refinished with Seamaster added. Case back is from a different watch.

DO NOT buy this watch.

 

real omega
edit: real franken omega

20 microns on a stainless watch

 

Thanks for the heads up much appreciated

 

Is the movement even Omega? If so, what watch does it likely come from?

 

Yes Omega 1012.
http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&&2uswk&Omega_1012

 

A real bastard child with the face of a different father and the back from a parts bin.

 

Korean seller or Southern California?

 

India, I guess.